Improvement in fire-boxes



R. GAY.

' Fire Box.

Patented Nov. 30, 1869.

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N,FETERS. PHOTO-LITHOGRAPHER, WAsi-IINGJJN D. C.

sind Gtiiiire.

REDMAN GAY, oF RICHMOND, VIRGINIA.

Laim .Puma No. meenam@ November 3o, 1869.

IMPROVEMENT IN .FIRE-BXES.

The Schedule referredtov in these Letters Patent and making peut of thesame.

To all whom` 'it may conce/rn:

Beit known that I, REDMAN GAY, of Richmond, in the countyrof Henrico,and Stat-e of Virginia, have invented certain new and usefulImprovements in Fire- Boxes; and I do hereby declare that the followingis a full, clear-,and exact description thereof, reference being had tothe accompanying drawings, and lto the letters of reference markedthereon,l which form a part of this specification. v

The nature of my invention consists in the con- ...struetion andadditiono a pipe within 4and across the vfire-box, for alocomotive-boiler, thereby diminishing the wood-space, and adding to thequantity of water exposed to the lire. i

' It has been found that the common iie-boxf-of a locomotive has toolarge a wood-space for the :usual vquantity of water exposed to'thefire. This` 'crosssection, which'Iy have added'v to the re-boxincr'easesthe volume of water in the same-proportion as itdiminishesthewood-space,thus enabling the engineer to generate or produce more steam with lessfuel than has hitherto been practicable.

In order to enable others skilled in the art to'wliich myinventionappertains, to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Fignre l is a longitudinal vertical section, and

Figure 2, a transverse vertical section of a flre-box, with myimprovement added to the same.

A'represents the usual -fire-box, having an inside sheet, a, and outsidesheet, b, connected by stay-bolts c c, and having the water-space dbetween them.

B is the usual uesheet, having tubes c e.-

Across the fire-box A is placed a pipe, C, the ends 4of which areflangedand secured to the inside sheet 1a., -which is cut out so as to connectthe water-space d with the pipe C, and allowthe water to enter the same.

Through the centre of the pipe G is passed a stayrod, I), secured ateach end to a conical plate, E, which` is riveted and bolted on theinside of the outside sheet b of the fire-box, and has a slot, f, toallow of the pipe C being cleaned out.

Opposite the slots f f, in the conical plates E E, are holes or openingsin the outside sheet b, which are closed by hand-hole plates h h,fastened in any suitaf ble manner, so as to be readily removed to cleanthe It will readily be seen that by this means a larger heating-surfaceis obtained without increasing the size of the lire-box. Onthe-contrary, the'wood-space is lessened, and consequently it will takeless fuel to produce more steam than heretofore.

This improvement will be particularly useful to railroad companies, and,in fact, to all who use locomotiveboilers.

e 'Itis simple, and does not impair the strength of the fire-box, northe draught of the lire, as most of similar improvements do.

AIt can be easily cleaned, and is as durable as `any other part of thefurnace.

Having thus fully described myiuvention,

IVhat I claim as new, and desire to secure by Let? ters Patent, is-

In combination with the flanged pipcO, secured, as descrihechto theinner sheet of the 'fire-box A, the 'stay-rod D, conical plates E E,provided with slots f f, and the hand-hole plates h h, all substantiallyas and, for the purposes herein set forth.

In testimony that I claim the foregoing as my own, I hereby affix mysignature, in presence of two witnesses.

REDMAN GAY.

Viitnesses:

C. ALEXANDER, J. V. WHITE.

